Compositions Containing Anthraquinone Dyes

Abstract

A composition composition containing (A) an alkali-soluble binder and (B) an anthraquinone dye of formula (I) wherein R 1 , R 2 , R 3 and R 4 are each independently of the other hydrogen, Q-Cgalkyl which may be unsubstituted or substituted by one or more halogen atoms, hydroxy groups, mercapto groups, amino groups, phenyl groups or C 1 QalkOXy groups, or —X—[—O—Y]n-ZH, wherein X and Y are each independently of the other C 2 -C 6 alkylene, Z denotes oxygen or sulphur and n is a number from 1 to 10, with the proviso that at least one of R 1 and R 2 is not hydrogen and at least one of R 3 and R 4 is not hydrogen and at least one R 2 , R 3 and R 4 is a hydroxy- or mercapto-substituted Q-Cgalkyl group, and R 5 to R 10 are each independently of the other hydrogen or Ci-Cgalkyl, is useful for the production of colour filters for liquid crystal displays, flat-panel displays, colour image pickup tubes, colour-copying machines etc.

1 . A composition containing
 (A) an alkali-soluble binder and   (B) an anthraquinone dye of formula   
       
         
           
           
               
               
           
         
         
           wherein 
           R 1 , R 2 , R 3  and R 4  are each independently of the other hydrogen, Ci-C 8 alkyl which may be unsubstituted or substituted by one or more halogen atoms, hydroxy groups, mercapto groups, amino groups, phenyl groups or CrC 8 alkoxy groups, or 
           —X—[—O—Y] n -ZH, wherein X and Y are each independently of the other C 2 -C 6 alkylene, Z denotes oxygen or sulphur and n is a number from 1 to 10, with the proviso that at least one of Ri and R 2  is not hydrogen and at least one of 
           R 3  and R 4  is not hydrogen and at least one of Ri, R 2 , R 3  and R 4  is a hydroxy- or mercapto-substituted C r C 8 alkyl group, and 
           R 5 to R 10  are each independently of the other hydrogen or d-C 8 alkyl. 
         
       
     
     
         2 . A composition according to  claim 1  wherein the alkali-soluble binder is an acrylic acid copolymer or methacrylic acid copolymer. 
     
     
         3 . A composition according to  claim 1  containing an anthraquinone dye of formula (1) wherein R 1  and R 3 denote hydrogen and R 2 and R 4  are C r Ci 2 hydroxyalkyl. 
     
     
         4 . A composition according to  claim 1  containing an anthraquinone dye of formula (1) wherein R 1 , R 2 , R 3  and R 4  are CrC 12 hydroxyalkyl. 
     
     
         5 . A composition according to  claim 1  additionally containing
 (C) a photopolymerisable vinyl compound different from component (A) and   (D) a photoinitiator.   
     
     
         6 . A composition according to claim  10  additionally containing
 (E) a pigment.   
     
     
         7 . A process for producing a colour filter comprising the steps of
 (a) coating a support layer with the dye containing composition according to  claim 1 ,   (b) irradiating the coated layer through a mask and   (c) developing the exposed composition to form a pattern.   
     
     
         8 . A compound of formulae (101) to (106)